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HelpTest Code AMISO Amylase, Isoenzymes, Serum
Necessary Information
Age and sex of patient are required.
Specimen Required
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions:
1. Serum gel tubes should be centrifuged within 2 hours of collection.
2. Red-top tubes should be centrifuged and the serum aliquoted into a plastic vial within 2 hours of collection.
Useful For
Ruling out salivary amylase as the cause of elevated serum amylase
Profile Information
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| AMYSE | Amylase, Total, S | Yes, (Order AMS) | Yes |
| AMYPA | Amylase, Pancreatic, S | No | Yes |
| AMYSA | Amylase, Salivary, S | No | Yes |
Testing Algorithm
Total and pancreatic amylase are measured in the submitted serum specimen. Salivary amylase is calculated as the difference between the two measured results (salivary amylase = total amylase-pancreatic amylase).
Reporting Name
Amylase, Isoenzymes, SSpecimen Type
SerumSpecimen Minimum Volume
See Specimen Required
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Refrigerated (preferred) | 30 days | |
| Frozen | 30 days | ||
| Ambient | 7 days |
Reject Due To
| Gross hemolysis | Reject |
Reference Values
AMYLASE, TOTAL
0-30 days: ≤6 U/L
31-182 days: 1-17 U/L
183-365 days: 6-44 U/L
1-3 years: 8-79 U/L
4-17 years: 21-110 U/L
≥18 years: 28-100 U/L
AMYLASE, PANCREATIC
0-<24 months: ≤20 U/L
2-<18 years: 9-35 U/L
≥18 years: 13-53 U/L
AMYLASE, SALIVARY
0-<18 years: Not established
≥18 years: ≤86 U/L
Day(s) Performed
Monday through Sunday
Report Available
1 to 3 daysSpecimen Retention Time
7 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
82150 x 2
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| AMISO | Amylase, Isoenzymes, S | 24333-7 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| AMYPA | Amylase, Pancreatic, S | 1805-1 |
| AMYSA | Amylase, Salivary, S | 1809-3 |
| AMYSE | Amylase, Total, S | 1798-8 |
Forms
If not ordering electronically, complete, print, and send Gastroenterology and Hepatology Test Request (T728) with the specimen.